Hypoventilation may be caused by an uneven distribution of inspired air (as in bronchitis), obesity, neuromuscular or skeletal disease affecting the thorax, decreased response of the respiratory center to carbon dioxide, or a reduced amount of functional lung tissue, as in atelectasis, emphysema, and pleural effusion.
Seborrheic Keratosis Causes Wart Like Skin Growths. Seborrheic keratosis causes wart like skin growths to appear on just about every body thatâs over age 40. Although they resemble skin cancer, these keratosis tumors are benign.
Causes and Types of Warts on Children. Warts, caused by the human papillomavirus or HPV, are noncancerous skin growths. They form when the virus invades the skin, usually through a tiny cut or scratch. The virus causes rapid growth of cells on the outer layer of skin. Warts are usually skin-colored but can be dark.